TM 10-4610-232-12
NOTE
Chemical tubing fittings are plastic and are to be loosened and tightened by hand.
Make certain all preformed packings and other components are installed after repair
procedures.
a. Standard tube fittings (Figure 4-28, View A).
(1) Unscrew nut (1) by hand.
(2) Cut any wire ties securing tubing (4) to walls or ceiling and remove tubing.
(3) Remove preformed packing (2) and spacer (3).
(4) Remove nut (1) and tubing (4), with compression fitting (5) attached, from fitting (6).
b. Chemical pump connections (Figure 4-28, View B).
(1) Unscrew nut (7) and pull out on tubing (9). Remove washer (8).
(2) Cut any wire ties securing tubing (9) to walls or ceiling and remove tubing (para. 4-10).
a. Tighten all loose fittings (6) or use antiseize tape on male threads to stop leaks.
b. Replace damaged tubing (4 or 9).
NOTE
Preformed packings, compression fittings and spacers are not individually replacea-
ble. When replacing tubing or fittings, these items are replaced as part of “kit” or
subassembly. Sections of tubing with compression fittings must be cut off if tubing is
to be repaired rather than replaced.
NOTE
Nuts and washers are supplied with the chemical pumps.
REASSEMBLY.
a. Standard tube fittings (Figure 4-28, View A).
(1)
(2)
(3)
(4)
Install nut (1), new compression fitting (5), new spacer (3) and preformed packing (2) onto tube (4).
Insert assembled tubing (1 thru 5) into fitting (6).
Hand tighten nut (1) into fitting, compression fitting (5) will lock tubing in place.
Install new wire ties to secure tubing to wall and ceiling attachment points (para. 4-10).
b. Chemical pump connections (Figure 4-28, View B).
(1) Install washers (8) on tubing (9).
NOTE
Preformed packings, compression fittings and spacers are not individually replacea-
ble. When replacing tubing or fittings, these items are replaced as part of “kit” or
subassembly. Sections of tubing with compression fittings must be cut off if tubing is
to be repaired rather than replaced.
(2) Install tubing (9) by hand tightening nuts (7).
(3) Install new wire ties and secure tubing to wall and ceiling attachment points (para. 4-10).
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